Motor-vehicle radiator



R. J. MCCREDIE.

MOTOR VEHICLE RADIATOR.

APPLICATION men 05c. 12, I918.

Pamnm Mar. 10, 1920.

REID J. MCCREDIE, 0F BUFFALO, NEW YORK.

MOTOR-VEHICLE RADIATOR.

Specification of Letters Patent.

Patented Mar.1e,192o.

Application filed December 12, 1918. Serial No. 266,460.

ticularly relates to an improved motor vehicle radiator.

It is the primary aim and object of this invention to provide a deviceof the above mentioned character designed with independent or separatedetachable water conducting tubes of novel construction to insure of aneffective cooling of the water as it passes through the tubes whenpassing from the upper to the lower part of the radiator.

More particularly this invention contemplates the provision of a deviceof the above mentioned character which consists generally of upper andlower tanks connected by side bars and arran ed in communication witheach other iy the improved tubes detachably fastened in positionbycouplings of improved construction, the component parts of the devicebeingso related that they may be shipped in a collapsed or aknocked-down form and are capable of being readily assembled and easilyrepaired.

It is a more specific object of this invention 'to provide a device ofthe above mentioned character wherein the sides of the tubes aredesigned with arches arranged alternately with respect to each otherwhile acting in conjunction therewith are the partitions designed todeflect the water into the arch portions of the tube to in consequenceinsure of a quick cooling of the water as it passes from the upper tankto the lower tank.

Among the other aims and objects of this invention may be recited theprovision of a device of the above mentioned character wherein thenumber of parts are compara- 1 companying drawings, and pointed out inElie claims, forming a part of this specifica- The invention is clearlyillustrated in the accompanying drawings, in which:

Figure 1 is avertical sectional View taken through the radiator,

Fig. 2 is a top plan detail of one of the upper coupling plates showingthe flanged end ofthe tube positioned therein,

Fig. 3 is an enlarged transverse sectional detail of the connectionbetween the tube and the upper tank,

Fig. 4 is an enlarged transverse sectional view taken on line 4l4 ofFig. 3, and

Fig. 5 is a sectional view taken on line 5-5 of Fig. 3.

Similar characters of reference are employed in all of the abovedescribed views to indicate corresponding parts.

Referring now, more particularly, to the accompanying drawings there isprovided the improved radiator which preferably consists generally of anupper tank indicated in its entirety by the numeral 1, a lower tankgenerally designated 2 and held in spaced relation with each other bymeans of the s1de bars 3 and arranged in communication with each otherthrough the instrumentality of the improved tube genererlly designatedby the numeral 4.

The upper tank has its rear wall 5 de tachably connected with the topand bottom walls by means of the lock seams 6 and when detached permitsof the making of repairs. In addition, this wall 5 is fitted with anipple 7 adapted to receive an inlet pipe (not shown) while the top wallis.

formed with an opening 8 to facilitate filling of the radiator and aboutthis opening is formed an upright collar 9 detachably closed by means ofa cap 10.

The lower tank 2 has its inner and bottom walls formed integral witheach other and arranged in connection respectively with the front andtop walls by means of lock seams 11 which when disengaged permit ofaccess to the lower tank. In addition, the rear and bottom walls of thelower tank are fitted with a nipple 12 adapted to receive an outlet pipe(not shown).

The opposite faces of the tanks are formed with series of opposedopenings 13 while integral with the upper face of the bottom wall of theupper tank about the openings therein are upright collars 14.

Likewise, depending from the lower faces of the top wall of the bottomtank and about the openings in the top wall are other collars 15.

Each of the tubes 4 are of rectangular con-- figuration in cross sectionthe upper and lower edges of the tubes being formed with outwardlyextending flanges 16. Coupling plates 17 are now employed and are formedwith longitudinal slots to accommodatethe adjacent end portions of thetubes while the adjacent faces of the plates are provided with recessesor countersinks 18 to accommodate the flanges 16 so that the outer facesof the flanges lie flush with the adjacent faces of the coupling plates.Packing elements or washers 20 are positioned between the walls of thetank and the adjacent flanges and coupling plates to effect water-tightjoints at the ends of the tubes while the outer projecting portions ofthe connecting plates are formed with openings 21 through which arepassed suitable fasteners such as screws 22, the threaded shanks ofwhich are anchored in the reinforcing bars 23 positioned on the innerfaces of the tanks as indicated in Fig. 1. The heads of the screws areformed with notches 24 on their inner faces and when tightened embracelugs 25 on the adjacent faces of the coupling plates, such arrangementserving to prevent accidental movement of the screws when the radiatoris subject to vibration during the operation of the engine of the motorvehicle (not shown). Protecting covers 26 are arranged over thereinforcing and bracing bars 23, the engagement between the covers andthe bars being frictional to permit of the removal of the covers when itis desired to make repairs or place the radiator in a knocked-down form.

In insuring of the effective cooling of the hot water as it passesthrough the tubes from the upper tank to the lower tank, theopposed sidewalls of each of the tubes are formed with suitably spaced outwardlyextending arched portions 28 alternately arranged with respect to eachother. A vertical partition generally designated by the numeral 29 isarranged through each of the tubes and in spaced relation to the opposeds de walls and in effect is constructed in a zlg-zag form in verticalcross section, each of the inclined portions 30 terminatingopposite andmedially of the arched portions while the metal from which each of thepartitions is formed is folded upon itself at the juncture of theinclined portions to provide outwardly extending deflecting lips orbaffles 31. The bafiles are arranged to proect alternately from oppositesldes of the partition and extend partially within the adjacent archedportions 28 to insure of the water which passes down each of the tubespassing into the adjacent arched portion so as to become cold when itreaches or enters the bottom or lower tank 2. These part tions 29 areclamped in the seams A formed in the tubes 28 as shown in Fig. 5 of thedrawing, the opposite edges of the partitions 29 being straight so thatthe same will engage in the seams and thereby make a fluid tight jointtherebetween, while the zig-zag form in vertical cross section-with thebaffles 31 are made by bending the plate between the straight edgesthereof.

In connecting the side bars 3 which are preferably of a channeled fromin cross section to the adjacent tanks 1 and 2 it is preferred thatangle brackets 32 be employed, the portions thereof being formed withopenings through which are passed nut and bolt arrangements 33 forrespectively engaging the side bars and the reinforcing bars 23, therebyincreasing the rigidity of the radiator in its entirety when assembled.

It is believed in view of the foregoing description that a furtherdetailed description of the operation of the invention is entirelyunnecessary. Likewise, it is believed that the advantages of theinvention will be readily apparent.

Still further embodiments of the invention than those herein especiallydefined may be resorted to as conditions or preference may dictate, asmay be in keeping with the hereto appended claims.

Having thus fully described the invention what is claimed as new anddesired to be secured by Letters Patent, is:

1. A radiator including spaced upper and lower tanks, a plurality ofspaced tubes connected to the tanks for establishing communicationbetween the tanks, the opposite walls of each of the tubes being formedwith arched portions positioned alternately with respect to each other,a partition in each tube, and deflecting lips projecting from theopposite faces of the partitions and extending slightly within theadjacent arched portions.

2. A radiator including spaced up )er and lower tanks, a plurality ofspace tubes connected to the tanks, the opposite walls of the tubesbeing provided with spaced arched portions positioned alternately with Irespect to each other, a vertical partition arranged in each tube andspaced slightly from. the opposed side walls of the tube, said partitionbeing of zlg-zag shape in vertical cross section and having theoppositely inclined portions inclined toward the adjacent archedportions, outwardly projecting deflecting lips extending from the pointsof juncture of the adjacent inclined portions of the partitions andextending slightly within the adjacent arched portions.

3. In a radiator, the combination with paced upper and lower tankshaving openings in their adjacent walls and tubes an ranged between thetanks in alinement with the opposed openings, of coupling platesprovided with slots for accommodating the adjacent ends of the tubes andhaving their inner faces provided with countersinks about the slots,outwardly extending flanges projecting from the ends of the tubesandaccommodated in the countersinks, washers positioned between the tanksand the adjacent plates and flanges, reinforcing bars arranged on theinner faces of the Walls of the tanks having openings therein andfastening devices passed through the plates and the Washers and adjacentwalls of the tanks and anchored in the reinforcing bars for detachablyand independently connecting the tubes to the tanks and providingwatertight joints therebetween.

In testimony whereof I afiix my signature hereto.

REID J MCCREDIE.

